Lec 8 - Mirror, Adhesion, Class III RBC

Question 1

mirror should be positioned so not to contact the blank

Answer 1

handpiece

Question 2

mirror should be positioned to avoid blank from the high speed handpiece

Answer 2

water spray

Question 3

blank vision is preferred

Answer 3

direct

Question 4

blank vision is used when using direct vision would result in improper operator positioning

Answer 4

indirect

Question 5

proper position of mirror should be where we can see this as the center of focus

Answer 5

seeing bur contacting tooth

Question 6

mirror position is constantly blank to see all surfaces of the preparation

Answer 6

changed

Question 7

mirror should be positioned blank the wall being prepared

Answer 7

opposite

Question 8

before using indirect vision, always use direct vision before the procedure to make sure blank is right

Answer 8

angle of the handpiece

Question 9

other sensory feedback that can be used to monitor handpiece and bur

Answer 9

proprioceptive, tactile

Question 10

mirror should be as blank as possible from handpiece

Answer 10

far

Question 11

another uses of intraoral mirror

Answer 11

reflect light, retract cheek, retract tongue

Question 12

result of interactions of a layer of intermediate material with two surfaces producing two adhesive interfaces

Answer 12

adhesive joint

Question 13

intermediate material is aka

Answer 13

adhesive

Question 14

two surfaces being stuck together

Answer 14

adherend

Question 15

the guy who talked about selective demineralization of enamel

Answer 15

buonocore

Question 16

the guy who developed the first bis gma resin

Answer 16

bowen

Question 17

enamel is blank percent mineral, blank percent organic, blank percent water

Answer 17

95, 4, 1

Question 18

enamel is formed by prisms of blank crystals

Answer 18

hydroxyapatite

Question 19

dentin is blank percent inorganic, blank percent organic, blank percent water

Answer 19

70, 20, 10

Question 20

dentin is a blank wet, and tubular structure

Answer 20

permeable

Question 21

dentin is more mineralized type of dentin

Answer 21

peritubular

Question 22

dentin rich in collagen fibers and is ideal for hybridization

Answer 22

intertubular

Question 23

adhesion to tooth structure is primarily blank

Answer 23

micromechanical

Question 24

current adhesive systems provide bonding to blank and blank substrates

Answer 24

hydrophilic, hydrophobic

Question 25

current classification of dental adhesive systems

Answer 25

clinical application steps (1,2,3), or underlying adhesive strategy (etch and rinse, self etch)

Question 26

this cleans and prepares surface and removes smear layer

Answer 26

etch (acid)

Question 27

this infiltrates exposed collagen network and displaces moisture and links to hydrophobic adhesive

Answer 27

primer

Question 28

this provides links to resin composite

Answer 28

adhesive

Question 29

the only bonding material that forms a chemical bond

Answer 29

glass ionomer

Question 30

optibond is a blank system

Answer 30

etch and rinse system

Question 31

smear is the blank layer

Answer 31

mineralized

Question 32

regardless of the method used, the enamel and dentin must be blank in order to achieve adhesion to the restorative resin

Answer 32

etching

Question 33

ideal acid to etch enamel

Answer 33

phosphoric

Question 34

phosphoric acid takes this long to etch

Answer 34

15-20 secs

Question 35

phosphoric acid is a blank acid

Answer 35

inorganic

Question 36

these can all have effects of acid etch

Answer 36

type of acid, etch time, acid conc, pH, form of etchant, rinse time

Question 37

predictable bond strength of enamel etching

Answer 37

20 MPa

Question 38

dentin should never be etched for longer than blank or it can be detrimental

Answer 38

15 secs

Question 39

etched enamel has a blank appearance but dentin doesnt

Answer 39

chalky

Question 40

deep dentin has more blank dentin so has blank bond strengths compared to superficial

Answer 40

peritubular (large tubules)

Question 41

these are only needed in dentin because it is more hydrophilic

Answer 41

primers

Question 42

primers are adhesion promoters that increase surface tension of the blank

Answer 42

collagen

Question 43

adhesives are very blank so no moisture contamination

Answer 43

hydrophobic

Question 44

adhesive like bis gma are more blank and blank viscous

Answer 44

hydrophobic, more

Question 45

wet bonding means that blank is required

Answer 45

removal of smear layer

Question 46

layer composed of resin, collagen fibrils, and partially demineralized dentin

Answer 46

hybrid layer

Question 47

steps for dentin restoration

Answer 47

etch, primer, adhesive, resin composite

Question 48

class 3 caries

Answer 48

smooth surface of proximal surfaces of anterior teeth beginning just gingival to contact